Re:Making a DIY text laser projector
by regularfry on Thursday February 07, 2019 @06:05PM
(#19109599)
That feels a lot more complicated than it needs to be.
Have you ever taken apart a mid-range camera with an electromechanical image stabilizer? It's a triangular plastic plate with a lens in the middle, a pin at one corner, and a couple of rare earth magnets at the other two. There are two voice coils mounted next to the plate to repel or attract the magnets, and a light spring to center the whole thing. Remarkably simple device, doing a remarkably similar job (modulo replacing the lens with a mirror if needs be).
Have you ever taken apart a mid-range camera with an electromechanical image stabilizer? It's a triangular plastic plate with a lens in the middle, a pin at one corner, and a couple of rare earth magnets at the other two. There are two voice coils mounted next to the plate to repel or attract the magnets, and a light spring to center the whole thing. Remarkably simple device, doing a remarkably similar job (modulo replacing the lens with a mirror if needs be).